Method

First you need to skin the mackerel fillets, which is no trouble as the flesh can be lifted away very easily.

Next, place the fish into the bowl of a food processor, then add the ricotta, soured cream and lemon juice, a good seasoning of salt, black pepper and the freshly grated nutmeg. Then switch on and blend until completely smooth, stopping the motor to scrape the mixture down the sides of the bowl halfway through.

Now taste and add a spot more lemon juice or seasoning if you think it needs it, then pack the mixture into the individual ramekins or the serving dish, cover with clingfilm and chill for several hours before serving. To serve, place about half a teaspoon of the capers in the centre of each ramekin and sprinkle with a touch of cayenne pepper.

Garnish with the watercress and lemon wedges and serve with freshly made wholemeal toast.